import SparkMD5 from 'spark-md5'

/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string}
 */
export function parseTime(time, cFormat) {
  if (time == null) return ''
  if (arguments.length === 0) {
    return null
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
      time = parseInt(time)
    }
    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
    let value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
    if (result.length > 0 && value < 10) {
      value = '0' + value
    }
    return value || 0
  })
  return time_str
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time) {
  if (typeof time === 'number') {
    if (('' + time).length === 10) {
      time = parseInt(time) * 1000
    } else {
      time = +time
    }
  }
  const d = new Date(time)
  const now = new Date()
  const nowYear = now.getFullYear()
  const dYear = d.getFullYear()
  const diff = (now - d) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    // 一天内
    return parseTime(d, '{h}:{i}')
  } else if (diff < 3600 * 24 * 2) {
    return '昨天'
  } else if (nowYear === dYear) {
    return (d.getMonth() + 1) + '月' + d.getDate() + '日'
  } else {
    return dYear + '年' + (d.getMonth() + 1) + '月' + d.getDate() + '日'
  }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url) {
  const search = url.split('?')[1]
  if (!search) {
    return {}
  }
  return JSON.parse(
    '{"' +
    decodeURIComponent(search)
      .replace(/"/g, '\\"')
      .replace(/&/g, '","')
      .replace(/=/g, '":"')
      .replace(/\+/g, ' ') +
    '"}'
  )
}

export function getChatId(from, to) {
  return [from, to].sort().join('-')
}

export function getOtherId(myId, chatId) {
  return chatId.replace(myId, '').replace('-', '')
}

export function isDef(val) {
  return val !== null && val !== undefined
}
export function addUnit(val) {
  if (!isNaN(val)) {
    return val + 'px'
  } else {
    return val
  }
}

// 计算文件的md5
export function computeFileMd5(file) {
  return new Promise((resolve, reject) => {
    const fileReader = new FileReader()
    const spark = new SparkMD5.ArrayBuffer()
    fileReader.readAsArrayBuffer(file)
    fileReader.onload = (e) => {
      spark.append(e.target?.result)
      resolve(spark.end())
    }
    fileReader.onerror = (e) => {
      reject(e)
    }
  })
}
